I slept on it and woke up realizing Marcus's post (above) truly tells all.
DOOR 1.7.2 needs the files and folders from moodle_plugin-1.7.0 to integrate with Moodle 1.9. Not a difficult concept, but I missed it.
On to installing the plug_in.
BobBl
Repositories
Look at Door & Moodle integration
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